Express the following expression in its partial fraction decomposition.
(3a² - 2a - 9)/(a³ - 9a)

• A. 1/a - 2/3(a - 3) - 4/3(a + 3)
• B. 1/a - 2(a - 3) - 4(a + 3)
• C. 1/a + 2/3(a - 3) + 4/3(a + 3)
• D. 1/a + 2(a - 3) + 4(a + 3)

Answer: (C)